The paper enumerats some problems on the second classifying system of law class in the fourth edition of chinese library classification and some material measures and advices of improvement on it had been brought forward in the paper 摘要本文列举了《中图法》 （第4版）法律第二分类体系分类法中存在的一些问题，并提出了具体改进措施和建议。
Dynamic fault tree combines the advantages of both fault tree and markov model . dynamic fault tree is modularized into independent static sub trees and independent dynamic sub trees , then solved by bdd and markov model separately 该方法首先将动态故障树模块化,得到独立的静态子树和动态子树,再分别用二元决策图法和马尔可夫过程方法求解。
However , as a convenient tool for modeling the dynamic procedures of multiple energy systems , the bond graph serves as an ideal alternative to unify the ev components with different physical as well as chemical attributions 利用现代控制工程很难将它们组合在一起，而作为研究多能源系统动态特性方法之一的键合图法却能很方便的把它们统一起来。
1 . method that controls quality of field observation values of unbonded elastic wire resistance type meters is studied . methods that examine system error of different types in observation values are discussed 主要研究内容如下： ( 1 )研究了差动电阻式仪器现场观测值的质量控制方法；探讨了对监测数据中不同类型的系统误差进行检验的控制图法和连检定法。
Dynamic fault tree exploits the relative advantages of both fault tree and markov model . dynamic fault tree is modularized into independent static subtrees and independent dynamic subtrees , then solved by bdd and markov model separately 该方法首先将动态故障树进行模块化，得到独立的静态子树和动态子树，再分别用二元决断图法和马尔可夫过程方法求解。
This paper studies on the classification installation of advertisement documents in chinese library classification ( 4th edition ) reasons how to classify the kind of documents and puts forward the author ' s opinion about classification 摘要论文通过对《中图法》第四版有关广告类目设置的问题进行研究，对该类文献的归属问题进行论证，提出自己的立类观点和见解。
2 . the paper studies calendar effects of the sample , such as periodicity and long memory 。 so we use the flexible fourier form regression proves and filters the periodic components 。 and use ghp method to estimate the fractional integration d 用对数周期图法( gph )检验和估计序列长记忆行为。最后对去周期的收益序列建立了garch和egarch模型,较理想的拟合了价格的波动。
We have do data analysis work . it is mainly work for our to show pressure signal , observe peak value of signal and compute signal power spectram . while we have conceive that used wavelet transform to distill pressure signal characteristic 频率域处理主要作了利用周期图法估计压力信号的功率谱，提出进一步的处理设想，利用小波分析的一些方法识别压力信号的特征。
This technique is not limited to model the permanent magnet brushless dc motor ( pmbldcm ) , and can be easily extended to other kinds of motors . the dynamic performance simulation is accomplished with the aid of matlab / simulink 因此利用键合图法对电机进行建模有其自身的特色和优点，除了能方便的得到电机自身的模型外，为以后与电动汽车的其它模块方便的连接起来奠定了基础。
Firstly the paper introduces the method of randomly competitive arbitrating , and then uses the method of simulation and analytics and signal flow graph and markov chain to analyze the competitive probability and length of arbitrations respectively 本文首先介绍了随机争用仲裁方法，然后分别使用模拟法、解析法、信号流图法以及马尔可夫链等手段对随机争用仲裁方法的获胜概率和仲裁长度进行分析。
